[Bladder bilharzioma and carcinoma in a bilharzial bladder].

Over 7 years, 592 patients infected by Schistosoma haematobium were detected. Among these, 102 had a cystoscopy which found carcinoma in 3 patients, polypi in 1 and vesical "bilharzioma" (so-called pseudo-polyps) in 14. From the results of the biopsies and data from the medical literature the relationship between schistosomiasis and carcinoma in the schistosomial bladder is discussed, as well as the meaning of various lesions, such as malpighian metaplasia, papillomatous hyperplasia and glandular cystitis, seen in biopsy specimens from "bilharziomas". The cystoscopic diagnosis of one (or several) tumours resembling "bilharzioma" requires biopsy, resection and close monitoring.